Plans for the biggest change to Test rugby since the advent of professionalism are being discussed in Dublin this week.
The sport's leading unions will meet with World Rugby wanting them to commit to the new competition - set to be a two-tier format that would reshape the global calendar - by the end of the week.
From there, the hope is that a formal vote on its introduction would be held in November. But what exactly would this new competition, a revamp of the failed Nations Championship that was scrapped in 2019, look like?
